/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
package com.pinterest.secor.util;

import java.util.Collections;
import java.util.LinkedList;

import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.io.compress.CompressionCodec;
import org.apache.hadoop.io.compress.CompressionCodecFactory;

/**
 * 
 * Compression Codec related helper methods
 * 
 * @author Praveen Murugesan (praveen@uber.com)
 *
 */
public class CompressionUtil {

    public static CompressionCodec createCompressionCodec(String className)
            throws Exception {
        Configuration configuration = new Configuration();
        CompressionCodecFactory.setCodecClasses(configuration,new LinkedList<Class>(Collections.singletonList(Class.forName(className))));
        CompressionCodecFactory ccf = new CompressionCodecFactory(
                configuration);
        return ccf.getCodecByClassName(className);
    }
}
